.solar {
  width: 80%;
  display: block;
  margin: auto;
}

.estruturas {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  padding: 0;
  flex-direction: column;
  margin-top: 10px;
}
.estru {
  width: 80%;
  padding: 10px;
}